package com.shirostudy.config;

import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * @BelongsProject: java-85-course-code
 * @BelongsPackage: com.shirostudy.config
 * @Author: LiTongMiao
 * @Date: 2022/2/23 15:17
 * @Description: TODO
 */
@Configuration
public class ShiroConfig {
    //ShiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);
        //添加shiro的内置过滤器
        /*
         * anon: 无需认证就可以访问
         * authc: 必须认证才能访问
         * user: 必须拥有 记住我 功能才能用
         * perms: 拥有对某个资源的权限才能访问
         * role: 拥有某个角色权限才能访问
         */
        //拦截
        Map<String, String> filterMap=new LinkedHashMap<>();
        //授权,正常情况下未授权就会跳到未授权界面
        filterMap.put("/user/add","perms[aaa:add]");//表示只有是aaa的用户才有add的限权
        filterMap.put("/user/*","authc");
        bean.setFilterChainDefinitionMap(filterMap);//这里是过滤链

        //设置登录的请求
        bean.setLoginUrl("/toLogin");
        //未授权页面
        bean.setUnauthorizedUrl("/noauth");
        //除去框架，只需要高这里
        return bean;
    }

    //DafaultWebSecurityManager
    @Bean(name ="securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();

        //关联UserRealm,怎么用拿到spring中bean对象，传参,要加上@qualifer（“方法名”）才可以绑定具体的那个bean对象
        securityManager.setRealm(userRealm);

        return securityManager;
    }


    //创建realm对象，需要自定义
    @Bean//(name = "userRealm"),也可以加上，正常情况下就是方法名
    public UserRealm userRealm(){
        return new UserRealm();
    }

}
